Radiator cap



Malz'. Z, H923.

N. VDEHMANN RADIATOR GAP v Filed Mar.

13, 1922 2 sheets-sheet l Patented 2G), 1923.

' entren sfr/eres NKOLAS VELEIMANN, @IF NEWARK, NEW JERSEY.

RADIATOR CAF.

`.ppllcation tiled 'March 13, 1922. Serial No. 5432119.

To all whom it may concern:

Be it known that l, Nrnonns Vinn- MANN, a citizen of Hungary, and a resident ot Newark, county ot Essex, and State ot New Jersey, have invented certain new and useful improvements in Radiator Caps, of

which the following is a specification.

This invention relates to an improved cap for receptacles, and is particularly adapted for gasolene tanks and also for the radiators ot' automobiles, being constructed to permit the opening of the cap topermit liquid to be poured into and through it, and is `one which can be closed or opened by a halt turn, and which is constructed to permit the installation of thermal indicators and the like.

The invention is designed to provide a cap of this kind which is not readily removable, that is, can only be removed after tools have been used on it to remove parts y thereof, and the cap is thus insured against lossl or breakage, 'which often results from hasty unscrewing of a cap, or from dropping it if it is removed while it is hot.

T he invention is illustrated in the accompanying drawings, in which Figure 1 is a central vertical section through a cap made according to my invention, and Figure 2 1s a similar section taken at right angles to Figure 1. Fi ure 3 is a section on line 3-3 in igure 1. Figure t is a face view of a gasket used in the cap. 4Figure 5 is a top view of the cap partly open. Figure 6 is a central section of a cap of modified construction. Figure l is a top view of the cap shown in Figure 6, and Figure 8 is a top view of a dap used in the cap shown in Figures tl and 7.

For the urpose of clearly describing the invention have illustrated and. described 1t primarily as designed for an automobile radiator, and in the drawings 10 indicates the threads that tit over the screw-threaded portion 11.,.and which is held in place by a suitable locking means, such as the lock screw 13.

The innerl member has an opening le; ci?

substantiallyl the same size as the inner diameter ot the pipe 10, and it has anl enlarged portion from which extends the inwardly' extending web 16, the web 16 extending part way across the member, preferably slightly more than half way across,'in the drawing the edge 17 indicating ythe end ot the web, so that there is thus formed an opening 18 through the web which is of any desired form, but is preferably made approximately semi-circular.

'lhe top member 19 is rotatably arranged on the member 12 and is usually secured thereon by being screw-threaded, The screw-threaded portion 20'screws onto the screw-threads on the outside of the enlarged portion 15, the top member 19 having a top plate 21 provided with an opening 22 which .is substantially semi-circular, which opening is adapted to be placed in and out of register with the' opening 18 as the top member is turned so that it either can be in position to fully' open the opening 18 or to entirely close it. A

l arrange a suitable gasket 23 on the under face ot the top plate 21, and in the form shown the gasket is held in position by the screw 24, the gasket iitting around underneath the top plate, as will be evident from Figures 1 and 2, and resting on the web and also on the enlarged portion 15, having a out away portion 25 of the same size and shape as the opening 22.

When the device is assembled, the top memberis screwed down on the inner member until'it has arrived at its proper position, and then its rotation in either direction is limited by a suitable means, the means shown consisting of a pin 26 which has a reducedend'27 that tits in a groove 28 in the inner member, the pin or screw 26 being cut of? flush with the outer tace of the rim or the top member 19 and being only removable by being drilled or otherwise intentionally removed. A

The removal ot the cap from the tube 10 is guarded against by providing the top mem- 'ber with an apron or tlange29 which extends down tar enough to cover the inner member and also the lock screw 13 so; that the lock screw can not be removed.

lt will be evident that when the device is te be opened to pour water into the radia tor, the top member is turned until the openings 18 and 22 are in register, and then water can be poured through these aligned openlll@ ings into the pipe 10. rllhe alignment of the openings 22 and 18 is easy wlienrthe pin 26 and the slot are disposed so that the pin is at one end-of the slot when the cap is open. llVhen the ca .p is to be closed it is given a half turn until the pin gets to the other end of the slot, but it will be evident that this-half turn is to the right, and the screw-threaded connection 20 is a right hand thread, so that as the top member is turned it is slightly forced down by the time the half turn is completed, the ed e 30 of the gasket 23 is pressed down tight y over the top face of the web, as at 31, closely adjacent to theedge 17 ofthe web, .and a water-tight and dust-tight closure 1s I'the' result.

The gasket is made of substantially stiff material, such as fibre, and retains its position lat against the'under face of the top plate 21, of the top member 19, and since the action of the edge 3() on the edge 17 is similar to that of a shear, there is no abutting of these edges and the edge 30 rides up over the top'face,4 but tightly against this top face, of the web 16. This provides a chamber or space within the cap when the cap is shut, so that this cap isadapted to receive and also permit the operation of any of the usual indicato-rs, one of which is shown in dotted outline at 32 in Figures 1 and 2, being fastened by suitable securing means, such as the screw 33 which passes through the hub 34C of .the top member and is secured to the bottom of the top member, the edge of the web having a notch 35 to allow for the head of the screw or similar` 'the top member 19 being provided with a flap 36 which is hinged, asat 37, to the top member and is adapted to close the opening 22, any suitable means, such as a sprin 38, being used to hold the Hap shut, an the projecting finger-piece 39 providing a 4 raaaaea f means for convenience in opening the flap. The reason for covering the opening is to prevent dirt and dust settling on the web 16 through the opening 22 when the cap is shut,since in this closed position the top face of theweb 16 would be otherwise eX- posed, and if dirt did so settle on the web it would be swept therefrom when the top member is swung to open position bythe edge 30 of the gasket and would thus be deposited into the receptacle. The flap keeps the web clean and there is no chance o-f dirt or other foreign matter being deposited into the gasolene or other contents of the tank.

ItA will be evident that changes can be made in the construction and form of the vparts without departing from the scopeof my invention,

I claim: 1. A radlator cap comprisingran lnner member with a central opening and having a web on the top, the web having an opening therein, a top member comprising a top plate and having a flange in screw-threaded having a top plate and having a flange in screw-threaded engagement with the inner member, and lia-ving an opening to register with the opening in the web, coacting means on the members for limiting the rotation of the top member, and a'gaske-t on the under face of the top plate and forced into engagement with the web by the screw-threaded connection of the members when the top member is turned to place the openings in the members on opposite sides ofthe center, the gasket'having an opening in register with the opening in the top plate.

In testimony that l claim the foregoing, l have hereto set my hand, this '10th day of March, 1920. i

NKOLAS VlEHMANN 

